X-API-Key: ********************curl --location 'https://api.snakk.ai/api/calendar/cancel' \
--header 'X-API-Key: <api-key>' \
--header 'Content-Type: application/json' \
--data '{
"agent_id": "2b1e3b65-2c04-4fa2-a2d7-467901e98978",
"customer_phone": "string",
"reason": "string"
}'{
"success": true,
"message": "Appointment cancelled"
}